How to choose the best HVAC unit components

HVAC unit components play a significant role in achieving durability and energy efficiency in equipment. As these two factors turn into minimizing economical costs, the importance of picking the right HVAC unit components should not be underestimated.

From our experience in designing and implementing HVAC technical parts, we provide a short guide in choosing reliable and efficient HVAC unit components.

What are the key HVAC unit components?


This tool is in charge of helping users manage and control temperature, turning HVAC equipment on and off whenever it’s necessary. While some can be programmed manually and others remotely, it’s typically found in an accessible location.

Heat Exchanger

Located within furnaces, it’s directly actuated by the thermostat. During colder months, its role is to heat indoor air, so that it provides heating power within the building through ducts and vents.

Evaporator Coil

This HVAC unit component is located next to the furnace, and, as opposed to the condenser coil, it works by cooling air from outside sources using the furnace’s blower and refrigerant during warm months. 

Condenser Coil

Placed within what is known as a condensing unit, the condenser coil removes heat from homes by condensing refrigerant gasses into liquids.

Combustion Chamber

Also known as a burner, it’s among the key HVAC unit components in charge of heating cool air whenever warm temperatures are demanded using combustible materials. 

Blower Motor

This piece of equipment is in charge of circulating cool and hot air across HVAC ductwork. Complete with a fan, it typically uses electricity and its power can be adjusted to each building’s needs. 

The efficiency of EPP foam in HVAC components

Which HVAC unit components are best suited to the job I am carrying out?

When it comes to choosing the right HVAC unit components for a project, there are at least two concepts that must be taken into account: 

Equipment efficiency:

While HVAC equipment is in charge of providing a comfortable environment all year round, it comes at the cost of using valuable energy resources, including electricity. 

This presents both an economical cost for users, as well as an important environmental impact. In fact, it’s said that 55% of energy consumption in US residential homes is directly linked to heating and cooling.

As such, the goal when picking equipment should be to achieve HVAC efficiency, that is, to minimize energy consumption while guaranteeing temperatures remain comfortable.

Technology developments, as well as improvements in generating more efficient materials, mean energy losses can now be controlled by picking the right HVAC unit components.


Maintenance operations and the possibility of developing durable and resistant HVAC unit components must also guide decisions when it comes to picking materials and equipment parts.

Maintenance in HVAC unit components implies a series of operations, from annual checks to filter cleaning, testing electrical components and connections, as well as guaranteeing thermostat settings remain in good shape. 

Picking the wrong materials or design in HVAC unit components might have a significant impact on how resistant the equipment is to problems such as moisture or bacterial growth, among others.

In fact, the right components can minimize maintenance processes in HVAC equipment, while wrong choices in this area might unnecessarily complicate them and generate additional issues. 

With these two important issues at hand, choosing the right HVAC unit components means looking into efficient and durable materials. This is where EPP foam comes in.

Expanded polypropylene foam has long been hailed as the right material to achieve proper insulation, guaranteeing that energy losses are kept at a minimum. 

This is because of this material’s extraordinary capabilities of staying stable over a wide temperature range.

Installed on a variety of HVAC unit components, it insulates ducts and pipes in ventilation systems, as well as water heaters, pumps, filters, and motors.

At the same time, EPP foam is extremely durable over time and resistant to a variety of scenarios, including protection against moisture, being water-resistant, and avoiding mold, fungi, and rust. 

Other additional benefits of EPP foam that benefit the HVAC industry include this material’s lightweight nature, its high strength-to-weight ratio, and the phenomenal acoustic insulation it provides.

You might also be interested in: EU Ecodesign Directive compliance tips for the HVAC sector

HVAC installation costs and how to reduce them 

Reducing weight through the use of lighter materials can have a deep impact on your logistics and instalation costs. The weight reduction in ventilation units allowed Alnor to use only one person in the installation process, reducing significantly their costs. 

If you want to learn more about Alnor and its experience you can download its success story here.

Want to learn more about how to pick the right HVAC unit components to enhance your equipment’s efficiency and economic performance? Download out Technical Manual about Expanded Foam in the Industry and find out about this material’s extraordinary advantages for the HVAC industry.

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